Fujinon Binoculars LB 40x150 ED-SX (23649)

Fujinon LB Series Binoculars

The Fujinon LB Series binoculars are renowned for their outstanding light-gathering performance at night, making them a popular choice among astronomers, especially for comet observation. Thanks to Electron Beam Coated optics and high-resolution lenses, these binoculars deliver bright, sharp images with excellent clarity and minimal distortion from the center to the edges of the field of view.

Key Features of the LB Series

• Exceptional image brightness achieved through large 150 mm objective lenses combined with Electron Beam Coated optics

• Impressive three-dimensional viewing effect created by the wide spacing between the objective lenses

• Optimized internal baffles for enhanced contrast

• Extremely robust construction with a fully waterproof, weatherproof, and corrosion-resistant housing

• High magnification of up to 40× for detailed observation over long distances

• Optional 45° angled viewing design available for increased comfort (EM version only)

• Optional mount and tripod available

Technical Specifications

Optical Design and Performance

• Prism system: Porro prisms

• Magnification: 40×

• Objective lens diameter: 150 mm

• Exit pupil: 3.8 mm

• Eye relief: 15 mm

• Lens coating: Fully multi-coated

• ED glass: Yes

Eyepiece and Focusing

• Eyecups: Folding

• Diopter adjustment: On both sides (individual eyepiece focusing)

• Interpupillary distance: 56–72 mm

• Focusing system: Individual focus per eyepiece

Viewing Characteristics

• True field of view: 1.7°

• Field of view at 1,000 m: 30 m

• Light intensity: 14

• Twilight factor: 77.5

Features and Protection

• Eyepieces suitable for glasses wearers: Yes

• Splash-proof: Yes

• Waterproof: Yes

• Tripod thread: Yes

• Objective lens covers: Included

• Eyepiece caps: Included

Physical Characteristics

• Color: Gray

• Length: 960 mm

• Width: 365 mm

• Weight: 18,500 g

Series

• LB

Recommended Applications

• Astronomy: Good

• Birdwatching: Not recommended

• Hunting: Not recommended

• Travel and sports: Not recommended

• Sailing: Not recommended

• Theatre use: Not recommended